MIN_PERNET_OPS_ID
memcpy(&ng->ptr[MIN_PERNET_OPS_ID], &old_ng->ptr[MIN_PERNET_OPS_ID],
(old_ng->s.len - MIN_PERNET_OPS_ID) * sizeof(void *));
error = ida_alloc_min(&net_generic_ids, MIN_PERNET_OPS_ID,
BUG_ON(id < MIN_PERNET_OPS_ID);